Tesselation material in scene causes Build-> Build Texture Streaming to crash

I actually found out if i build → texture streaming… and have any material with some tesselation set up… then it crashes… moment i remove the meshes with tesselation it builds fine. So what do i do about that??? I cannot build lighting because it starts with building of texture streaming…

This only happens on 4.26… i never modified the project… has worked since like 4.12 as well as 4.25 lol…

Tessellation will be removed on Unreal 5.
Probably some code from 5 sneaked into 4.26 where it should still be working.

So… will it be fixed? Because Im kinda using tesselation in my game… Or will it be replaced soon?